Air cooler



c. w. STONE.

AIR COOLER. APPLICATION FILED NOV. 7, 1919.

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AIR COOLER. APPLICATION FILED NOV. 7, 1919.

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entree stares CHARLES w. STONE, or TUSCALOOSA, ALABAMA.

AIR COOLER.

Specification of Letters Patent.

Patented Aug. 1, 1922.

Application filed Novemberi', 1919. Serial No. 336,417. r

T 0 all whom it may concern:

Be it known that I, CHARLES WESLEY STONE, a citizen of the UnitedStates, residing at Tuscaloosa, in the countyof Tuscaloosa and State ofAlabama, have invented certain new and useful Improvements in AirCoolers; and I do hereby declare the following to be a full, clear andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to improvements in air coolers which may be usedin connection with a furnace of any conventional hot air type and oneobject of the inventionis to provide a device of the abovestated-character which is so constructed that cool air may be fed intothe distributing pipes, of the furnace and thus cool air delivered tothe rooms thereby permitting the building to be cooled during hotweather;

Another object of the invention is to provide an improved type of, aircooling de vice so constructed that air may be drawn through a pipecoiled about a cylinder or casing and then passed through a pipe coiledwithin the casing and discharged in the casing adjacent one end thereofand drawn out through the opposite end, an arm monia pipe being coiledwithin the casing to provide the cooling medium.

Another object of the invention is to so construct this cooler that itwill be compact and thus take up a comparatively small amount of space.

Another object of the invention is to so construct this attachment thatit will be simple in construction and consist of comparatively fewparts.

This invention is illustrated in the ac companying drawings wherein:

Figure 1 is a view in side elevation show ing the attachment inconnection with a conventional type of air furnace.

Figure 2 i an enlarged side elevation of the air cooler.

Figure 3 is a view showing the casing and outer pipe in section and theinner pipe in elevation.

Figure 4 is a View similar to Figure 3 showing the ammonia pipe insection and the air pipe in elevation.

Figure 5 is a transverse sectional view through the cooler.

This cooler may be used in connection with a hot air furnace which is ofa conventional construction and provided with I the usual air inlet pipe"11 and distributing pipes 12. A fan housing 13in which will bepositioned a conventional electric fan,

is positioned intermediate-the length of the 'pipe'll so that air maybe'drawn into the fan housing through the pipe 11 and forced from thefan housing into the hot air furnace 1O frOm which-it is dischargedthrough the pipes 12 to the various rooms to be cooled p The cooler ispositioned between the fan housing and the source of air supply and isprovided with a casing 1 1 having an outletopening 15 in one end. An airpipe or conductor .l6.is coiled about the casing 14 from the lower endto the upper end and is then carried back upon itself and coiledaboutthe casing from the upper end to the lower end, the last coilsbeingpositioned between the first coils. carried to the bottom ofthecasing and con nectedwithj the inner pipe whichis coiled within thecasing and first carried upwardly in a spiral path and then reversed andcarried downwardly in a spiral path with its open end positionedadjacent the bottom of the casing. It will thus be seen that the airmust first pass upwardly around the casing and then downwardly aroundthe The pipe 16 is then casing before entering the casing and will thenbe carried upwardly and downwardly within the casing inthe pipe 17. Airwill thus be passed from the pipe 17 into the lower end of the casingand must travel upwardly through the casing to the top thereof beforepassing through the outlet 15 into the pipe 11 through which it willpass to the fan housing. In order to cool the casing and the pipethrough which the air passes there has been provided an ammoniacompressing apparatus 18 of any well known construction. A pipe 19extends from the apparatus 18 into the lower end portion of the casingand then is coiled upwardly through the casing adjacent the side wallsof the casing and after reaching the top it is carried downwardly inaspiral path with its convolutions positioned and closed by theconvolutions of the first coil. After reaching the bottom of the casingthe pipe extends through the casing and com municates with the apparatus18. It will thus be seen that ammonia is compressed and forced throughthe ammonia coils thus taking up the heat. By having the ammonia coilsextending close to the walls of the casing the outer air pipes will becooled as well as the inner air pipes. This will cause the air to becooled by passing through the pipes and also when passing through thecasing after leaving, the air pipe. Therefore when the air leaves thecooler and passes to the fan housing, it will. be cooled and thendistributed to the various rooms of the building through the medium ofthe furnace.

What is claimed is: I p 1. An air cooler comprising a casing, an airpipe having its exhaust end located within the casing and its intake endlocated exteriorly of said casing, said pipe being bent to form a pairof coiled portions and one of said portions surrounding the exterior ofthe casing and the other coiled portion located within-the casing, acool ing medium" for the casing, and means for dispenslng cooled airfrom said casing.

3. An air cooler comprising a casing having an outlet opening, an airpipe having its exhaust end located in the casing and its intake locatedexteriorly of said casing, said pipes having pairs of double coiledportions and one portion surrounding the exterior of the casing from oneend to the other end of the latter; said other coiled portion located inthe casing and extending from one end of the casing to the other endthereof, said exhaust end of the pipe being located at an opposite endof the casing from the outlet opening,'a cooling medium for the casing,and air dispensing means connected with the outlet opening.

- 4:. An air cooler comprising a casing,-an air pipe having its exhaustend located within the casing and its intake end located exteriorly ofsaid casing, said pipe being bent to form a pairof coil'portions, andone of said coil portions surrounding the exterior of the casing, andthe other coil portion 10'- catedwithin the casing, 'a'coiled coolingelement located Within the casing, and a suction fan connected to oneend of the casing for dispensing cooled air therefrom.

In testimony whereof I a-flix my signature in presence of two witnesses.

CHARLES WESLEY STONE. Witnesses: 7

WALTER SAMUEL DUMAS, CHARLE WERDNA KYNARD.

